Question 4 1pt 9 1 0 Details Consider g(x) = - 8+ 6x2 + x3 - 6x Determine the intervals on which g is concave down. g is concave down on: O g is concave down nowhere. Determine the intervals on which g is concave up. O g is concave up on: O g is concave up nowhere. Determine the value and location of any inflection point of g. Enter the solution in (x, g(x) ) form. If multiple solutions exist, use a comma-separated list to enter the solutions. g has an inflection point at: O g has no inflection point. Submit and End